Bulgaria vs Slovakia: Renewable energy
Bulgaria
5.43 terawatt-hours
in 2025
Slovakia
4.23 terawatt-hours
in 2025
Bulgaria rank
37th
Slovakia rank
39th
Renewable energy over time
- Bulgaria
- Slovakia
How they compare
Bulgaria currently reports 5.43 terawatt-hours against 4.23 terawatt-hours in Slovakia, a difference of 1.2 terawatt-hours.
That makes Bulgaria's figure about 1.3 times Slovakia's.
The two have swapped places 1 time across 61 shared years of data; in 1965 it was Slovakia ahead.
Bulgaria ranks 37th and Slovakia ranks 39th of 79 countries.
Across the 7 decades both report, Bulgaria averaged higher in 1 and Slovakia in 2.
Head to head by decade
| Decade | Bulgaria | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1970s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1980s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1990s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 2000s | 0.0069 terawatt-hours | 0.7222 terawatt-hours | 0.7153 terawatt-hours | Slovakia |
| 2010s | 1.48 terawatt-hours | 3.99 terawatt-hours | 2.51 terawatt-hours | Slovakia |
| 2020s | 6.02 terawatt-hours | 4.75 terawatt-hours | 1.27 terawatt-hours | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher renewable energy, Bulgaria or Slovakia?
- Bulgaria, at 5.43 terawatt-hours against 4.23 terawatt-hours in Slovakia as of 2025.
- What is the difference in renewable energy between Bulgaria and Slovakia?
- 1.2 terawatt-hours, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Slovakia?
- 61 years are reported by both, from 1965 to 2025.
- How do Bulgaria and Slovakia rank globally for renewable energy?
- Bulgaria ranks 37th and Slovakia ranks 39th of 79 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as Renewable energy. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours of total energy supply.